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Hair Loss Science | Rove Health | Rove Health
Hair Loss Science Verified & Reviewed By
Dr. Aditya Oswal, Dr. Chaitanya Kalra and Dr. Harshita Pathak
Why Hair Fall Starts Months After the Damage Not When You Expect It Telogen Effluvium: hair loss that’s delayed, not permanent Why This Matters If your hair is suddenly shedding in handfuls, the trigger likely happened 2–3 months ago , not last week.
Telogen Effluvium isn’t random hair loss it’s a stress response . And the good news? It’s usually reversible .
What You’ll Learn About Telogen Effluvium
Why hair fall often starts after stress, illness, or dieting
How telogen effluvium differs from genetic or hormonal hair loss
Why low iron (ferritin) is a common, missed cause in Indian women
Changes you might be noticing:
Sudden increase in hair fall while washing or combing
Hair everywhere pillow, drain, floor
Hair thinning without bald patches
Hair fall starting weeks after fever, COVID, exams, or weight loss
Being told “it’s just stress” without real guidance
This isn’t permanent damage.re-prioritising survival .
The Science (Simple Physiology)
What Is Telogen Effluvium?
Anagen (growth phase)Catagen (transition)Telogen (resting/shedding phase) Under physical or emotional stress, a large number of hairs shift prematurely into the telogen phase .
About 2–3 months later , those hairs shed all at once .
Telogen effluvium is triggered by events like:
High stress or emotional shock
Fever or infections (including COVID)
Crash dieting or rapid weight loss
Surgery or childbirth
Nutrient deficiencies
The delay is what makes it confusing.
Iron (Ferritin) Matters More Than You Think
Low Ferritin = Hair That Won’t Hold On Ferritin reflects your iron stores , not just haemoglobin.
Ferritin is often low even when Hb is “normal”
Menstrual blood loss worsens depletion
Vegetarian diets may lack absorbable iron
Low ferritin shortens the hair growth phase, making shedding worse .
Hair needs iron before it needs oils or serums.
The Fix: Helping Hair Recover (Not Panic-Shedding More)
1. Identify the Trigger (Look Back 2–3 Months)
Illness or fever?
Extreme stress?
Weight loss or skipped meals?
Hair loss makes sense once you connect the dots.
2. Check Iron Stores Not Just Hb For hair health, ferritin ideally should be >50–70 ng/mL (clinical target varies).
3. Rebuild Nutrition (Slowly) Hair recovery requires consistency, not extremes.
Iron-rich foods: palak, methi, beetroot, dates
Protein: dal, paneer, eggs, fish
Vitamin C with meals (lemon, amla) → improves iron absorption
Avoid crash dieting it prolongs shedding.
4. Reduce Stress on the Body
Adequate sleep
Gentle exercise (not overtraining)
Regular meals
Hair growth resumes when the body feels safe again.
5. Be Patient (This Is Hard but Crucial) Once the trigger is removed:
Shedding may continue for weeks
Regrowth starts quietly
Full recovery takes 3–6 months
Cycle Syncing Insight
Chronic under-fuelling worsens luteal phase stress
Heavy periods increase iron loss
Supporting nutrition across cycles protects hair long-term
Hair reflects metabolic stability , not just scalp care.
What to Remember and How to Use This
Sudden hair fall often reflects something that happened 2–3 months earlier
Think back to stress, illness, or dieting instead of panicking about the present
In Indian women, low ferritin is a common and correctable cause
Address nutrition, iron stores, and recovery not just hair products
With the right support, telogen effluvium is temporary and reversible
Dr. Rove’s Note If hair loss lasts longer than 6 months, shows patchy loss, or is associated with fatigue or irregular cycles, evaluate iron status, thyroid function, and overall nutrition.
References & Further Reading 
